He writes with increasing （ ）on the subject
A、exploitation
B、interpretation
C、explanation
D、sophistication
【正确答案】：D
【题目解析】：句意：他关于该主题的写作手法越发精致。exploitation n. 剥削，开发 the exploitation of childreninterpretation n. 理解，解释 Dreams are open to interpretation. 梦可以做各种诠释。explanation n. 解释，说明（原因） She left the room without explanation.sophistication n. 世故，精致
